The International Classification of Diseases, Tenth Edition (ICD-10), is a clinical cataloging system that went into effect for the U.S. healthcare industry on Oct. 1, 2015, after a series of lengthy delays.

The ICD-10-CM (Clinical Modification) is a system used by physicians and other healthcare providers to classify and code all diagnoses, symptoms and procedures recorded in conjunction with hospital care in the United States.

The International Classification of Diseases, 10th Revision, Procedure Coding System (ICD-10-PCS) is a U.S. cataloging system for procedural codes that track various health interventions taken by medical professionals.

The International Classification of Disease, Eleventh Revision (ICD-11) is a system of medical coding created by the World Health Organization (WHO) for documenting diseases, signs and symptoms, diagnoses and social circumstances.